2153543043 has 8 divisors (see below), whose sum is σ = 2872055056. Its totient is φ = 1435363200.

The previous prime is 2153543033. The next prime is 2153543069. The reversal of 2153543043 is 3403453512.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2153543043 - 2⁴ = 2153543027 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2153543043.

It is not an unprimeable number, because it can be changed into a prime (2153543003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67498 + ... + 94143.

It is an arithmetic number, because the mean of its divisors is an integer number (359006882).

Almost surely, 2^2153543043 is an apocalyptic number.

2153543043 is a deficient number, since it is larger than the sum of its proper divisors (718512013).

2153543043 is a wasteful number, since it uses less digits than its factorization.

2153543043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166085.

The product of its (nonzero) digits is 21600, while the sum is 30.

The square root of 2153543043 is about 46406.2823656453. The cubic root of 2153543043 is about 1291.3714643114.

Adding to 2153543043 its reverse (3403453512), we get a palindrome (5556996555).

The spelling of 2153543043 in words is "two billion, one hundred fifty-three million, five hundred forty-three thousand, forty-three".